<template>
  <div>
    <!-- 面包屑导航区  -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域  -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="querytInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button> </el-input
        ></el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodslist" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="95"> </el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="70"> </el-table-column>
        <el-table-column label="创建时间" width="170">
          <template v-slot="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column prop="prop" label="操作" width="130">
          <template v-slot="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="querytInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="querytInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'List',
  data() {
    return {
      querytInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //根据分页获取对应的数据列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.querytInfo
      })
      if (res.meta.status !== 200) return this.$message.error('获取数据列表失败！')
      // this.$message.success('获取数据列表成功!')
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.querytInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.querytInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据Id删除商品
    async removeById({ goods_id }) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品 , 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 取消的返回值是 cancel
      // 确认的返回值是 confirm
      if (confirmResult !== 'confirm') return this.$message.info('取消了删除操作！')
      // 删除的业务逻辑
      const { data: res } = await this.$http.delete('goods/' + goods_id)
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error('删除商品失败!')
      this.$message.success('删除商品成功!')
      this.getGoodsList()
    },
    // 跳转到指定页面
    goAddpage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="scss" scoped></style>
